대한산업공학회지 (Journal of Korean Institute of Industrial Engineers)

  • 제33권2호
  • /
  • Pages.191-200
  • /
  • 2007
  • /
  • 1225-0988(pISSN)
  • /
  • 2234-6457(eISSN)
대한산업공학회 (Korean Institute of Industrial Engineers)
권호 표지

순방향 WCDMA 채널에서 AMR 음성 트래픽의 품질 보증 모델

Quality of Service Assurance Model for AMR Voice Traffic in Downlink WCDMA System

  • 정성환 (서울대학교 산업공학과) ;
  • 홍정완 (한성대학교 산업시스템공학과) ;
  • 이창훈 (서울대학교 산업공학과)
  • Jung, Sung Hwan (Department of Industrial Engineering, Seoul National University) ;
  • Hong, Jung Wan (Department of Industrial Systems Engineering, Hansung University) ;
  • Lie, Chang Hoon (Department of Industrial Engineering, Seoul National University)
  • 발행 : 2007.06.30
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초록

We propose the QoS (Quality of Service) assurance model for AMR (Adaptive MultiRate) voice users considering the capacity and service quality jointly in downlink WCDMA system. For this purpose, we introduce a new system performance measure and the number-based AMR mode allocation scheme. The proposed number-based AMR mode allocation can be operated only with the information of total number of ongoing users. Therefore, it can be more simply implemented than the existing power-based allocation. The proposed system performance measure considers the stochastic variations of AMR modes of ongoing users and can be analytically obtained using CTMC (Continuous Time Markov Chain) modeling. In order to validate the proposed analytical model, a discrete event-based simulation model is also developed. The performance measure obtained from the analytical model is in agreement with the simulation results and is expected to be useful for parameter optimization.

키워드

참고문헌

  1. 3GPP TR 25.922 V3.1.0: Radio Resource Management Strategies, (2000)
  2. 3GPP TR 26.975: Performance Characterization or the AMR Speech Codec, (2002)
  3. Bruhn, S., Blocher, P., Hellwig, K., and Sjoberg, J. (1999), Concepts and solutions for link adaptation and inband signaling for the GSM AMR speech coding standard, IEEE 49th Vehicular Technology Conference, 3, 2451-2455
  4. Corbun, O., Almgren, M., and Svanbro, K. (1998), Capacity and speech quality aspects using adaptive multi-rate(AMR), The 9th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, 3, 1535-1539
  5. Dimitriou, N., Tafazolli, R. and Sfikas, G. (2000), Quality of service for multimedia CDMA, IEEE Communications Magazine, 38(7), 88-94
  6. Fu, H. and Thompson, J. S. (2002), Downlink capacity analysis in 3GPP WCDMA networks system, Third International Conference on 3G Mobile Communication Technologies, 534-538
  7. Holma, H. and Toskala, A. (2004), WCDMA for UMTS, 3rd Ed., John Wiley & Sons, New York
  8. Hoz, D. and Cordier, C. (1999), W-CDMA downlink performance analysis, IEEE 50th Vehicular Technology Conference, 2, 68-972
  9. Jeon, W. S. and Jeong, D. G. (2002), Call admission control for CDMA mobile communications systems supporting multimedia services, IEEE Transactions on Wireless Communications, 1(4), 649-659 https://doi.org/10.1109/TWC.2002.804189
  10. Karlsson, M., Almgren, M., Bruhn, S., Larsson, K., and Sundelin, M. (2002), Joint Capacity and Quality Evaluation for AMR Telephony Speech in WCDMA Systems, IEEE 56th Vehicular Technology Conference, 4, 24-28, 2046-2050
  11. Kim, D. I., Hossain, E. and Bhargava, V. K. (2003), Downlink joint rate and power allocation in cellular multirate WCDMA systems, IEEE Transactions on Wireless Communications, 2(1), 69-80 https://doi.org/10.1109/TWC.2002.806366
  12. Kleinrock, L. (1975), Queueing Systems, vol I, John Wiley & Sons
  13. Knutsson, J., Butovitsch, P. Persson, M., and Yates, R. D. (1998), Downlink Admission Control Strategies for CDMA Systems in a Manhattan Environment, IEEE Vehicular Technology Conference, Ottawa, Canada, 2, 1453-1457
  14. Lee, J. and Han, Y. (2002), Downlink admission control for multimedia services in WCDMA, The 13th IEEE International Symposium on Indoor and Mobile Radio Communications, 5, 2234-2238
  15. Malik, S. A. and Zeghlache, D. (2002), Resource allocation for multimedia services on the UMTS downlink, IEEE International Conference on Communication, 5, 3076-3080
  16. Sallabi, F., Lakas, A., Shuaib, K. and M. (2005), Boulmalf, WCDMA downlink simulator with efficient wrap-around technique, WOCN 2005, Wireless and Optical Communications Networks, 472-479
  17. Sipila, K., Honkasalo, K. C, Laiho-Steffens, J., and Wacker, A. (2000), Estimation of Capacity and Required Transmission Power of WCDMA Downlink Based on a Downlink Pole Equation, IEEE Vehicular Technology Conference, Tokyo, 2, 15-18, 1002-1005
  18. Trivedi, K. S. (2002), Probability and Statistics with Reliability, Queuing and Computer Science Applications, 2nd. Ed. John Wiley & Sons, New York